Shear Stress in Nickel and Ni-60Co under One-Dimensional Shock Loading

Journal Article · Fri Jul 28 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2263438· OSTI ID:20875774

Workman, A; Wallwork, A ^[1]; Meziere, Y J. E.; Millett, J C. F. ^[2]; Bourne, N K ^[3]

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1. AWE, Aldermaston, Reading, RG7 4PR (United Kingdom)
2. Defence Academy of the UK, Cranfield University, Shrivenham, Swindon, SN6 8LA (United Kingdom)
3. University of Manchester, Sackville Street, Manchester, M60 1QD (United Kingdom)

The dynamic response of pure nickel (Ni), and its alloy, Ni-60Co (by weight %), has been investigated during one-dimensional shock loading. Few materials' properties are different and the only significantly altered feature is the reduced stacking fault energy (SFE) for the Ni-60Co. This paper considers the effect of this reduced SFE on the shear strength. Data (in terms of shock stress, particle velocity and shock velocity) are also presented. The influence on the shear stress, {tau} of cobalt additions in nickel are then investigated and presented. Results indicate that the lateral stress is increasing in both materials with the increasing impact stress. The shear stress was found to be higher in the nickel than in the Ni-60Co. The progressive decrease of the lateral stress noted during loading indicates a complex mechanism of deformation behind the shock front.

• OSTI ID: 20875774
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 845; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COBALT ALLOYS
DEFORMATION
LOADING
NICKEL
NICKEL ALLOYS
PARTICLES
PRESSURE DEPENDENCE
SHEAR
SHEAR PROPERTIES
SHOCK WAVES
STACKING FAULTS
STRESSES
VELOCITY